Bin gate



l. VV. FORSYTHE AND FN. HAYS.

BIN GATE.

APPL|cAT|oN.FxLED Aue.. 192|4 LASQCA8-- www@ Nov. 79 51922,.

4 SHEETS-SHEE`I l.

J. W.- FORSYTHE AND F. N. HAYS.

BIN GATE.

APPLICATION FILED AUG.8r 1921,

jlo Patented Nov.. 7, 31.922..

4 SHEETS-SHE 2.

W@ De J. W. FORSYTHE AND F. N. HAYS.

BIN GATE.

APPLICATION FILED AIIG.8. 1921.

I MA- mma Nw. 7, 11922.

4 SHEETS-SHEET 3.

J. W. FORSYTHE AND F. N. HAYS.

BIN GATE.

APPLICATION FILED AUG.8, 1921,

MMAS@ muted Nov. 7, 11922;

Patented Nov. 7, 1922.

entran sraras PATENT JOHN 11V. FOBSYTHE, OF EDGEVVOOD PARK, AND FRED N.HAYS, 0F PITTSBURGH,

PENNSYLVANTA. u

BIN GATE.

Application filed August S, 1921.

To a-ZZ whom t may concern.'

and FRED N. Hays, citizens of the United States, and residents,respectively, of Edgewood Park and Pittsburgh, both in the county ot'Allegheny and State of Pennsyl- Vania, have invented certain new anduseful Improvements in Bin Gates, ot which the following is aspecification.

This invention relates to the outlets or discharge ports or bins orhoppers. lorry cars, and the like, and more `particularly to means forforming a seal between the discharge ports or outlets of such devicesand the inlets or receiving ports of a bin, hopper, or other receptacle.

@ne object of the invention ispto provide a seal which is movable intoand out oi' sealing position, and which is actuated by the mechanismused in opening the gate 'or shutter controlling the outlet or dischargeport of a bin or hopper, or other receptacle.

Another object of this invention is to provide asealing mechanism whichconsists ot' tew parts, is readily and cheaply manufactured, andis*strong and durable.

The above and other objects oi' our invention will be more t'ullyexplained hereinafter and illustrated in the accompanying drawingsforming` part ot' this specification, in which- Figure 1 is a sectionalside elevation showing one arrangement of apparatus embodying ourinvention.

Figure 2 is an end elevation of the apparatus ot' Figure 1.

Figure 3 is a side elevation7 partly broken away, showing a portion ofthe apparatus of Figures 1 and 2. with the sealing means or ring forminga novel feature of our invention in raised or inoperative position.

Figure it is a side elevation similar to that ot Figure 3. showing thesealing means or ring in lowered or operative position.

Figure is a side elevation similar to that of Figure Ll. showing furtherdetails ot' the lifting mechanism by which the sealing ring ismanipulated. with the sealing ring in operative position.

Figure 6 is a side elevation like that oi Figure 5. showing the sealingring and ring operating mechanism in lifted or inoperative position, n n

ln the drawings in which our invention 1s shown applied to apparatusused in handling Serial No. 490,549.

inely'divided materials such as iron ore. flue dust, ashes, and thelike, the apparatus comprises a delivery or discharge conduit leadingfrom an overhead bin or hopper, a lorry car B which receives thematerials discharged from the conduit and a receiv-y ing conduit C intowhich materials are discharged from the lorry car l. lt is -to beunderstood that the receiving conduit C is located at a distance fromthe conduit A, the lorry car B being used to transport materials fromthe conduit to the conduit C.

T he lorry car B comprises a Wheeled truck 2, which travels on the trackformedby thee rails 3, and a body portion e. The upper end or top of thebodyt is closed,'with the exception of the inlet opening or port 5, thisport having an annular ring or shoulder 6 projecting upwardly andterminating in an outwardly extending i'lange 1. The bottom 8 oit thecar body 5 is rusto-conical and has a depending straight or verticallywalled outlet port 9. A second depending vertical wall, which is spacedfrom the wall of the outlet port 9, -forms a skirt for supporting theoperatingv mechanism by which the gate or shutter 11 and the sealingring 12 are manipulated in opening and closing the shutter 11 and ring12.

Thev gate 11, which as shown, is of the rocking type, is adapted toswing into and out of closing engagement with the lower edge of the Wallforming the port 9. rThis gate has a closure portion l13, which is ofvconsiderably greater width than the port 9 and side members 14 and 14a.rilhe upper end of the side members are provided with integral stubshafts or pivot pins 15 and l5a respectively, which extend outwardly atright angles to the side members 14, 1st, and are journaled in bearings16 formed in the wall o1` skirt 10.

The sealing means or ring 12 is telescoped over the Wall or skirt 10 andis free to slide or move vertically relative thereto. The space betweenthe ring 12 and wall or skirt 10 is'sealed and made dustproof by meansof a renewable packing 17. this packing being made of asbestos, rubber,or like material, and being removably secured to the lower edge oftheskirt 10 so as to bear against the inner surface of the sealing ring 12.

The stub shaft or pin 15a, which is longer than the stub shaft 15, has agear 18 keyed to open and close the discharge port or outlet spur gearteeth 31 so 9. rl`lie gear 18 meshes with a spiii pinion 19 on the shaft20 which is liournaled in a hearing :21 and in a bearing 22 on the lowerend of the bracket 23 which depends from the sloping bottoni of thelorry car body 4. The shaft extends through the bearing '22 and has asprocket wheel 21 keyed on one end thereof which is operativelyconnected by the sprocket chain 25 to the sprocket wheel 2G on the shaft2T. The sha-ft v27. which is mounted in a bearing on the body Lt of thecar A is provided with a hand wheel 28. so that when the hand wheel isturned motion will be communicated. through the sprocket wheels 2l and26 and chain 25, to the shaft 2O and. through the shaft 20, to the gears19 and 1S and rock shaft- 152. so as to swingor rock the gate or shutter1l.

The stub shafts 15 and 15a have levers 30 and 3()a keyed thereon to turnwiththe shafts. and the ends of these levers which are fixed to theshafts.'are provided with as to Jform a segmental and mutilated geai.Another pair of levers 32- aiid 32a. which are mounted to turn on stubshafts 33 and 33a ixed to the wall 10, have similarly arranged spur gearteeth 34 which mesh with the teeth 31 on the levers and 30a. so thatwhen the hand wheel 28 vis turned the levers 30 and 30, 32 and -to oneend of a link 35,

32a. are caused to `swing in unison.

'Each ofthe levers 30, 30a and 32. 32a is pivotally connected at itsswinging end and the lower depending end of the links 35 are bent toJform hooks A3G which engage with anti-friction rollers 3T secured bypins to the lifting ears or lugs 38 on the sealing ring 12. in raisingand lowering this sealing ring into and out ot' operative position. i

The delivery or discharge conduit A of Y Figures 1 and -2 is shownprovided with the same sealing mechanism and gate or shutterinechanism'as thatl on the discharge port or outlet 9 of the lorry car Band in referring to this mechanism the .same reference numerals are usedto designate like parts. However instead ot' employing the hand wheel 2Sin the manner which hasbeen described. the sprocket wheel 28a. ismounted on the shaft 2T which carries a 'pinion gear 26a. and this vgear26l meshes direct-lv with agear 24: on the end of the shaft 20. Asprocket chain l0. which is trained over the sprocket wheel 28n and overa pairof idler sprocket wheels il and 42 which are rotatably mounted ona support 43. is eniployed to operate the lifting mechanism in movingthe sealing ring 12 into and out of opera-.tive position on the delivervconduit A.

It will be noted that the travel of the gate or shutter l1 that isnecessary in order to open and 'close the conduit 9 is vconsiderablygreater than the travel of the sealing ring 12 that is required to movethe ring into and out of its operative position and, therefore, in orderto move the sealing ring into operative position before the outlet port9 beginsvto open and to entirelyclose the outlet port 9 before thesealing ring commences to move from its operative position with a singleoperating mechanism, it is necessary to provide for considerable lostmotion in the operating mechanism. n

In the operation of ourv improved apparatus in connection with the lorrycar B, the car will be moved on the trac-k rails 3 until the outlet port9 is directly above the receiving conduit AC.

The hand wheel 28 will then be moved so as to turn the shaft 20. At thecommencement of the turning movement of the shaft 20. the links 35 willstart to move downwardly. and at the same time the shutter or gate 13will start to swing. Turning movement of the shaft 2O is continued, andwhen the sealing ring 12, which moves downwardlv1 by gravity rests uponthe dangle 7 of the receiving conduit @the gate 13 w1 l still be in portclosing position, this gate being made long enough to make thispossible. Further turning movement of the shaft 2O continues theswinging movement of the shutter or gate 13 and' gradually uncovers oropens the port 9 so as to permit materials within the body portion 4 ofthe lorry car to flow b v gravity into the receiving conduit C. It willbe noted that as the sealing ring had moved downwardly into sealingposition before the' gate 11 commenced to open. that the escape of dustor finely divided solids froni between the lower end of the poi't 9 andupper end of the receiving conduit C is prevented and overcome. Afterthe sealing ring 12 becomes seated upon the flange Ta of the conduit C.the hooks on the l110 ends of the links 35 move downwardly out ofengagnient with the anti-friction rollers 3T 'on the pins secured to thelugs or ears 38 on the sealing ring 12, this downward movementsgot` thelinks 35 being continued 115 until the gate or shutter l1 is in portopening position.

After the body i of the lorry car is emptied of its contents, the lhandYwheel 28 is moved in the opposite direction. Atthe 120 commencement ofthis reverse movement the gate or shutter 11 is moved into port closingposition and the poit is entirely 36 on the en age with 125 and start tolitt the sealing ring into -inoperative position', or from the position130 mamas shown in Figure l into that shown in Figure 3. During the timethe ring l2 is being lifted. the gate l1 continues to move but Withoutuncovering the port 9. lt also will be noted that the sealing ringremains in sealing position until the gate ll is returned to its closingposition belonv the port 9.

, The lorry car vvill then be transferred into position to receiveanother load of the materials being handled by moving it into positionimmediately beneath the discharge or outlet conduit A.

The operation of the sealing ring on the outlet A is substantially thesame as that of the ring on the bottom of the lorry car. one exceptionbeing that the sprocket chain ai() is employed to actuate the operatingmechanism instead of the hand wheel 2S.

The man v advantages of our invention.

which will be appreciated by those skilled in the art. arise from theuse of the sealing ring b v which a discharge port is connected to areceiving conduit so as to prevent the escape of dust into thesurrounding atmospheie.

vhile one specific. embodiment of our invention is shoivn and described.herein, it is to be expressly understood that the invention is notlimited thereto. since various mod'ications in the construction andapplication of appa latus embodying our invention may be made withoutdeparting from the invention as defined in the appended claims.

Ve claiml. The combination with a receptacle having a discharge port. ofa gate for controlling said port. a reciprocable sealing ring mountedaround said port adapted to seal said port with the inlet port of aVreceiving bin. means for operating Said gate. and means connecting saidgate and said sealing ring. said last named means being adapted toautomatically move said sealing ring into sealing engagement with saidinlet port upon the operation of said gate operating means prior to theopening of said gate.

Q. The combination with a receptacle having a discharge port. of arocking gate for controlling said port. a vertically reciprocablesealing ring mounted around said port adapted to seal said port with theinlet port of a receiving hin. means for rocking said gate to open andclosed position. and means connecting said gate and said sealing ring.said last named means bein adapted to automatically lower said sea ingring ivhen said gate is rocked to open position and to raise saidsealing ring when said gate is rocked to closed position.

The combination with a receptacle having a discharge port. of a rockinggate for controlling said port. a vertically reciprocable sealing ringmounted around said port adapted to seal said port- With t-he inlet portof a receiving bin. means for rocking said gate to open and closedposition, andA means operated b v said gate for lowering said sealingring into sealing position and raising said gate out of sealingposition. said means being adapted to lower said sealing ring intosealing position prior to the opening of said gate and to raise saidsealing ring out of sealing position only after said gate is in closedposition.

l. The combination with a receptacle having a discharge port, and areceiving bin having an inlet port, of a gate for controlling saiddischarge port, a reciprocable sealing ring around said discharge portadapted to seal said discharge port with said inlet port of thereceiving bin, means for operating said gate. and means operable by thegate for moving said sealing ring into sealing position prior to theopening of said gate. l

5. The combination with a receptacle having a discharge port. of a gatefor controlling said port. a reciprocable sealing ring mounted aroundsaid port adapted to seal said port with the inlet port of a receivingbin. means for operating said sealing ring and said gate. said meansbeing adapted to move said sealing ring into operative position prior tothe -opening of said gate, and comprising rocking shafts on said gate,means for rotating said shafts and said gate, a lever secured to each ofsaid shafts, gear teeth formed on the end of said levers adjacent saidshaft. other levers mounted on stub shafts to the one side of saidrocking shafts, gear teeth formed on the end of said last named leversnearest said stub Shaft. said teeth on said last named levers being inmesh with the teeth on said first named levers. links pivotally securedto the free ends of said levers and having their other ends removablysecured to suitable lugs formed on said ring.

In testimony whereof. We have hereunto set our hands.

Jona iv. ronsvrnie. FRED N. Havs.

